Excitons observed in action

April 16, 2014 7:04 PM

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A quasiparticle called an exciton has been understood theoretically for decades. But exciton movement within materials has never been directly observed.

Now scientists at Massachusetts Institute of Technology (MIT) and the City College of New York have achieved that feat, imaging excitons’ motions directly. This could enable research leading to significant advances in electronics, they say, as well as a better understanding of natural energy-transfe...